Cotton-gin



0. C. McBRIDE.

COTTON GIN.

APPLICATION FILED IuNEzs. |919.

Patented June 29, 1920.

. cotton clogging in the lint flue due tothel UNITED STATES PATENT OFFICE.

oscAR cALvIN McBRIDE, on GRANITE, oKLAHMA, AssrsNoa To W'ILKIE HoRATIo nomina or MANGUM, OKLAHOMA.

common-GIN.

To all 'whom t may concernz. y Be it known that I, OSCAR CALVIN Mej- BRIDE, a citizen of the United States, and a resident of Granite, in the county of Kiowa and-State of Oklahoma, have invented certain new and usefullmprovements in Cotcation.

My invention relatesgenerally to improvements in cotton gins, and more particton-Gins, of whichy the yfollowing isa specii- Y maintain the door in closed position against ularly to improvements inlintflues thereof.

An importantfobj ect of my invention is to provide a lint flue with means adapted to automatically operate to discharge thel cot# ton from the lint flue when the pressure therein becomes excessivey by reason of the improper action of the condenser or to other causes.

Anotherobject is to provide a device yof this kind which will not necessitate any special construction of gin or condenser, and which will not in any way interfere with the normal operation of the'cotton gin as -a whole.

Other objects and advantages reside'in certain novel advantagesk of the construction, arrangement andcombinationof parts whichwill become apparent as the descrip` tion proceeds, reference being hadqto the accompanying drawings forming a part of .this specification, and in which Y Figure 1 is an elevational view of my invention, parts being broken` away for the sake of illustration,

F ig.v 2 is a vertical cross section on the line 4 4 of Fig. 1,and f a Fig. 3 is adetail sectional view of the spring catch and adjacent structure, the parts being exiaggeratedv and the curvature of the lint flue wall and door being neglected.

for-,the sake of illustration.

Referring to the drawing, itwill be seen the numeral 5 indicates a lint flueV which leads fromthe ycotton gin,` (not shown) to the condenser. rlhe condenser may be of any vdesired type or construction and is shown diagrammatically for thev sake of illustration, as including a casing 6 and a screen. roller 7. The cotton is fed by means of a-forced draft from the ginto the condenser in the usual manner as shownby'the arrows in Fig. l.

. g Application led June 26, 1919. Serial No. 306,917.`

The lint llue 5 is usually of circular cross section asshown in Fig. 2, and is provided with an opening Sin the wall thereofwhich constitutes the vent. A closure, preferably in the form of a door 9 is provided for the opening and hinged thereto at its lower end as at .9. Any suitable means which will `adapted to coperate with the door so as to allow the door to swing outwardly under the influence of excessive pressure so as not to `impede the discharge of the cotton from the flue but to hold sameclosed against normal i pressure.

.The spring catch 10 comprises a bracket portion consisting of a base 11 secured to the wallv of the lint flue b means of bolts and nuts 12 or the like. formed integral with the base and are provided with alined aperturesto receive vthe pivot bolt 14 mounted therein. A trip 15 is mounted on the pivot bolt 14 and has its lower end 15 bearingy against the upper end of the door 9. This trip "has its upper end bent'aroundfto form a journal by which the trip is mounted on thepivot bolt and this upper end after completing the journal is then bent back on itself and extends upwardly and then outwardly substantially at right angles, to Iform a trip arm 16. A bladespring 17 is secured to the upperportion of the bracket 11 preferably by means standing ears13 are of the bolts and nuts 12 which also serve'fto f secure the bracket to the lint lineas .pre`

viously described.v The lower'portion of the spring 17 Lbears against the `trip arm land of the pivot bolt 14` with respect tothe ar.

rangement of the trip7 trip `armand spring itself. y Y l As is well known in the art, thev cotton is fed fromV the gin through` the flue-under forced draft to the condenser. At times,

`however, the condensery does not operate :draft acts upon the door 9 and forces the same outwardly against the action of the trip arm t5. whichtends to hold the same closed by virtue of the action of the spring 17". As the door 94v moves. outwardly the tri-.p

v 15 is-alsoy moved outwardly and the tri-p arm 1,6 moves upwardly. After the trip arm 16 moves upward beyond the horizontal plane of the pivot bolt-'14; the effective action ofthe spring f7 with respect tothe trip 15 is reversed and the trip is then thrown upwardly to thel position shown in dotted lines, in Eig. 3 andV is held in this position. The door then falls; freely outward and the cotton flows freely outof the opening. YIn this manner any possibility of the cotton backing up. into 'the ginA proper and thereby damagingF the same .is effectively precluded,

After the clogging has been relieved, the door is closedl andy the trip reset by seizing the portion 15 and pulling the same down to position near the door. Thetrip snaps against the door and holds thefsame closed, though effective to automatically operate to allowthe same topopen as previously described.y

l. Xn-improvement in cotton gins'compris.- ing, a lint flue,J inwhich the cottonA is conveyedfrom the ginto the condenser under forced draft, provided with an, opening, a doorV for lsaid opening, a bracket arranged adjacent saiddoor, a trip pivotallysmounted on 'said bracket having a trip arm and a spring mounted on said' bracket and bearing against said trip arm whereby said trip I maintains said door inA closed .position against normal pressure in said lint liucl and allows such door to. open outwardly when said pressure becomes excessive and theliint in said ftue is,- in danger of backing upinto f the gin.

2.'An improvement in cotton gins comprising a lintflue, in, which the cotton is con.- veyed fromthe gin to the condenser under forced'draft, providedwith an opening, a door for said opening, a vbracket, arranged adjacentsaid ldoorand having aperturedl ears, apivot bolt mounted in said apertured ears, a trip journaled on said pivot bolt having-anextension therefrom.V forming a trip. arm and a blade spring securedffto4 said i bracket and bearing against saidV arm subing, a lint iiue` nwhch the Cotton sonveyedy fron-1th@ gin to the condenser under forced draft, provided with an opening, av door for said opening, a bracket arranged adjacent said door, a pivot bolt mounted upon said bracket, a trip journaled on said pivot bolt and engaging the Vdoor and having a trip. arm' adapted 1n closed position of the door to be disposed below the fulcrum of the trip and a spring mounted upon the: trip and bearing against the tri-p'arm whereby theftrip arm tends to maintain theV door closed whenthe same is'in closed position and is released 'to allow 'the door to freely open when the doorl is moved upwardly a predetermined distance against the action of the spring. Y

v 4:. An improvement in cotton ginscornprising a lint flue, in which the cotton 'is1 conveyed fromthegin to the condenser under forced draft, provided with an;y opening, a door for said opening, a braclret arranged adjacent saiddoor, a pivot bolt; mou-ntedbn said bracket, Va tripli-aving its upper end veyed from the gin to the condenser'v under forced draft, rovided with an open-ing, a closure forA suc s opening and aspring actuated trip` adapted! tohol'dsaid closure i'n sli-ut position against normal nue' pressures in said lint flue and permit said closureto; open to allow a discharge 'Y of lint fromsaid lint flue when the pressure in said lint flue is excessive andthe lint isi-n danger of backing upv into the gin. l j

6. An improvement in cottongins comprising a lint flue in which. the cotton is. conveyed from the gin to the condenser under forced draft, provided withv an opening, a closure for such open-ing, and a trip. adapted tov hold said closure iin shut` position against normal flue pressures in said lint flue. and permit said closure to open to alzlovz a. discharge of lint from said lint iiuewhcnthe pressure in said lint. flue is excessivev and theY lint. is in` free discharge of the lint from the flue when a closure for said opening, and spring means the lint is in danger of backing up 'into the for normally maintaining said closure Shut gin. and permitting said closure to open and al- 10 8. An improvement in cotton gins eompris- 10W free discharge of the lint from the fiue ing a lint flue in Which the Cotton is con- When the lint is in danger of backing up veyed from the gin to the condenser under into the gin.

forced draft, and provided with an opening, OSCAR CALVIN MCBRIDE. 

